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<h1 class="topictitle1">Updating a File Name Extension Filtering Rule</h1>
<div id="body0000001645228818"><p id="EN-US_TOPIC_0000002200876201__p8060118">This section describes how to modify a file name extension filtering rule associated with a file system. After the modification, the new file name extension filtering rule takes effect when the file name extension status changes to <span class="uicontrol" id="EN-US_TOPIC_0000002200876201__uicontrol319661604311"><b>Applied</b></span>.</p>
<div class="section" id="EN-US_TOPIC_0000002200876201__section142071477415"><h4 class="sectiontitle">Prerequisites</h4><p id="EN-US_TOPIC_0000002200876201__p1246616101742">If you need to add file name extensions to be intercepted for a file system, create a file name extension filtering rule first by referring to <a href="en-us_topic_0000002200876205.html">Creating a File Name Extension Filtering Rule</a>.</p>
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<div class="section" id="EN-US_TOPIC_0000002200876201__section463212115368"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0000002200876201__en-us_topic_0000001337156461_ol159217814715"><li id="EN-US_TOPIC_0000002200876201__li18319144416020"><span>Choose <span class="uicontrol" id="EN-US_TOPIC_0000002200876201__uicontrol7765162719548"><b>Data Security &gt; File Interception</b></span>.</span></li><li id="EN-US_TOPIC_0000002200876201__en-us_topic_0000001337156461_en-us_topic_0000001166366216_en-us_topic_0000001091431193_li12591123311535"><span>On the <span class="uicontrol" id="EN-US_TOPIC_0000002200876201__uicontrol1312862511363"><b><span id="EN-US_TOPIC_0000002200876201__text1146617119461"><strong>File Systems</strong></span></b></span> tab page, choose <span class="menucascade" id="EN-US_TOPIC_0000002200876201__menucascade85584903615"><b><span class="uicontrol" id="EN-US_TOPIC_0000002200876201__uicontrol1155549193615"><span id="EN-US_TOPIC_0000002200876201__text69159114614"><strong>More</strong></span></span></b> &gt; <b><span class="uicontrol" id="EN-US_TOPIC_0000002200876201__uicontrol449025019367"><span id="EN-US_TOPIC_0000002200876201__text17188183915"><strong>Update File Name Extension Filtering Rule</strong></span></span></b></span> in the row where a file system resides.</span><p><p id="EN-US_TOPIC_0000002200876201__p206187206372">The <span class="uicontrol" id="EN-US_TOPIC_0000002200876201__uicontrol97020715383"><b><span id="EN-US_TOPIC_0000002200876201__text11941615693"><strong>Update File Name Extension Filtering Rule</strong></span></b></span> window is displayed. By default, all file name extension filtering rules that have been associated with file systems are selected. Select or deselect file name extension filtering rules in the list as required.</p>
<p id="EN-US_TOPIC_0000002200876201__p6316202119112"><span><img id="EN-US_TOPIC_0000002200876201__image1386142431219" src="en-us_image_0000002200876305.png"></span></p>
<p id="EN-US_TOPIC_0000002200876201__p1838795253718"></p>
</p></li><li id="EN-US_TOPIC_0000002200876201__li1918479182418"><span>Click <span class="uicontrol" id="EN-US_TOPIC_0000002200876201__uicontrol13382141812240"><b><span id="EN-US_TOPIC_0000002200876201__text14358104111468"><strong>OK</strong></span></b></span>.</span></li><li id="EN-US_TOPIC_0000002200876201__li1643473219246"><span>In the dialog box that is displayed, confirm the information and click <span class="uicontrol" id="EN-US_TOPIC_0000002200876201__uicontrol20684135402418"><b><span id="EN-US_TOPIC_0000002200876201__text9357443194614"><strong>OK</strong></span></b></span>.</span></li></ol>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0000002200761781.html">Managing File Interception (Pre-event Interception)</a></div>
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